Grate and coal cleaner



(No Model.) i

W. J. LEWIS.

-GRATB AND COAL CLEANER.

No. 328,043. Patented Oct. 13, 1885.--

V14 PETEIIS, PhMo-Ulhognpher, Wmhnginn, D.C.

UNITED STATES PATENT OFFICE.

WARREN J. LEWIS, OF LEOMINSTEE, MASSACHUSETTS.

GRATE AND COAL CLEANER.

SPECIFICATION forming part of Letters Patent No. 328,043, dated October 13, 1885.

Application led February 9, 1885, Serial No. 155,445. (No model.)

T0 aZZ whom it may concern:

Be it known t-hat I, WARREN J. LEwIs, of Leominster, in the county of Worcester and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Grate and Coal Cleaners; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this-specification, in which- Figure l represents a top or plan view of a grate and coal cleaner embodying my said improvements. Fig. 2 is a central vertical section on line :t w, Fig. 1. Fig. 3 is a side View looking in the direction of the arrow l, Fig. 1, and Fig. 4 is a rear view looking in the direction of arrow 2, Fig. l.

To enable those skilled in the art to which my invention belongs to make and use the same, I will proceed to describe it more in detail.

The object of my present improvements is to obviate the objections to grate and coal cleaners as heretofore constructed.

My present invention consists in certain improvements in coal and grate cleaners, designed to be run back and forth upon the up per surface of the grate-bars, for separating the ashes therefrom, as hereinafter set forth,

In the drawings, the part marked A represents a grate and ,coal cleaner embodying my said improvements, and which in this instance is represented as made of cast metal, with openings or slots B cast therein, and a center rib, C, running through the center from the cast-handle part D. The openings B are made larger at the lower side, as indicated in dotted lines at E, Fig. 2, and the front and rear part of the grate and coal cleaner is made with downwardly-inclined or wedge-shaped ends, F F', while the side pieces or parts, G G, are made hollowing upon their under edges, as indicated in Figs. 2 and 3 of the drawings, whereby, when the device is run back and forth upon the grate, only the lower edges of the ends F F will rest and slide upon or in contact with the grate-bars. The solid parts B do not extend down to the bottom of the parts F F, but are made thin enough to leave open spaces C', between their under surfaces and the grate-bars, as an ash- .receptacle between their lower surfaces and the grate-bars. I prefer, however, to extend one or more ofsaid parts down, as shown at D', Fig. 2, to act as ash-Scrapers as the device is moved back and forth, thus facilitating the passage of the ashes between the gratebars into the ash-pit below.

For the purpose of securing a convenient, cheap, and durable handle-piece, a wroughtiron socket-piece, H, having one or more holes, b, as indicated in full and dotted lines, Fig. 2, is placed in the core-box, so that when the part A is cast, the metal will run into and fill socket-piece H, and through the holes b therein, thereby securing said piece rmly in position in the cast part D. Said socketpiece, for convenience in attaching a pipehandle, is provided with a screw-thread, I, and to prevent the metal running in and lling the socket or hole J in the outer end of piece H, said hole should be filled with core-sand or other suitable material before the casting operation takes place, but such filling can be easily knocked out after the device is taken from the mold. A piece of gas-pipe, having a coupling on the end, can be readily secured to the end of the socket-piece H, and by which the grate and coal cleaner can be run back and forth on the grate-bars very easily. The inclined surface F, as the device is run in, gradually presses up the coal and ashes from the bottom without disturbing the main body of coal, and then upon the withdrawal of the device it allows the coal to descend gradually, and the same action takes place by reason of the inclined beveled surface F--viz: thegradual raising of the coal and allowing it gradually to descend to rest upon the grate-bars, while the ashes are caused by such operation to sift freely through the openings in the frame-work of the cleaner, and thence into the ash-pit below.

The central portion between the ends F F may be provided with any number or size or shaped openings desired.

I prefer to make the device by casting, as that can be very cheaply done, and the width, length, and shape of the entire device may be varied to suit the taste and preference of different manufacturers without departing from the principle of my invention.

If preferred, the handle-piece D may be cast solid, and afterward drilled to receive the handle.

For use in a furnace where a drop-grate is used, or where the grate is below the door, the device may have a swiveled or loose handle, for convenience of operation.

Having described my improvement in grate and coal cleaners,what I claim therein as new, and desire to secure by Letters Patent, is

1. A coal and grate cleaner having inclined or beveled ends F F', ash-openings B, space or spaces C', and projections, D', substantially as and for the purposes set forth.

2. A coal and grate cleaner having solid and continuous front and rear edges, said edges provided with beveled or inclined surfaces FF' to facilitate the back and forth movement of the device without undue disturbance of the coal when it is run in upon the upper surface of the grate and under the coal, for removing the ashes from the coal and grate bars, substantially as described.

3. A coal and grate cleaner provided with open ash space or spaces C', and projection or projections D', whereby, when the cleaner is run in upon the upper surface of the gratebars and under the coal the ashes will fall through space or spaces C', upon the gratebars, from which they will be forced off by projection or projections D', substantially as described.

4. A coal or grate cleaner having curved or elevated under edges, G G, beveled or inclined edges F F', and openings B, substan- 35 tially as and for the purposes set forth.

VARREN J. LEWIS. Witnesses:

Trios. H. DODGE, Crus. D. GAY. 

